## LaTeX forum ⇒ Math & Science ⇒ convert matrix to system

Information and discussion about LaTeX's math and science related features (e.g. formulas, graphs).
vinc
Posts: 9
Joined: Fri Oct 25, 2019 7:12 pm

### convert matrix to system

Hello

I would like to display with laTex the start of calculation below

I tried to do.

A.X=0 \Longleftrightarrow$M(A)=\left( \begin{array}{*{2}{c}} 4&-2\\ 5&-3\\ \left( \begin{array}{*{1}{c}} X\\ Y\end{array} \right)$ =0 \Longleftrightarrow\begin{cases}4x-2y=0\\6x-2y=0\\\end{cases}

It caused a lot of bugs, I think the mix of text and number and tag issues.

Could you help me solve this little problem.

Thank you!

See you soon

Bartman
Posts: 68
Joined: Fri Jan 03, 2020 2:39 pm
You could use pmatrix instead of array:

\documentclass{article}\usepackage{mathtools}% loads amsmath \begin{document}$AX=0 \Longleftrightarrow \begin{pmatrix} 4&-2\\ 5&-3 \end{pmatrix} \begin{pmatrix} X\\ Y \end{pmatrix} =0 \Longleftrightarrow \begin{cases} 4x-2y=0\\ 6x-2y=0 \end{cases}$\end{document}

Your source code makes me suspect that you have not yet read a LaTeX introduction. Please catch up.

vinc
Posts: 9
Joined: Fri Oct 25, 2019 7:12 pm
Hello

There are still bugs, I put them on the post below.

Thank you!
See you soon

Bartman
Posts: 68
Joined: Fri Jan 03, 2020 2:39 pm
We do not know the example that generates these error messages.